sdamato
New Member
I have a 1999 370 Aft Cabin with twin 7.4 Horizon Merc 380 HP engines and I started having a problem where my engines will surge by themselves when running under 2000 RPM's. It is almost like a low fuel pressure where my idle will be going up and down by itself. Once I go over 2000 RPM's I do not have the problem. I have replaced the MAP (Manifold Absolute Pressure) sensor but that didn't fix the problem.
Has anyone else had this problem and what did you do to correct it.
Has anyone else had this problem and what did you do to correct it.
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